Advanced Carpal Bones Quiz
Ready to start the quiz?
This quiz contains 10 questions. Click below to begin.
Q1. Which carpal bone is fractured most commonly?
- Pisiform
- Lunate
- Scaphoid
- Trapezoid
Q2. Tenderness in the anatomical snuffbox after a fall should raise suspicion for fracture of which carpal bone?
- Scaphoid
- Pisiform
- Hamate
- Capitate
Q3. Why is the proximal fragment of a fractured scaphoid at risk of avascular necrosis?
- Its proximal pole is supplied only by the ulnar artery through the pisiform
- Much of its blood supply enters distally and travels toward the proximal pole
- The proximal pole lies outside the wrist capsule
- The scaphoid normally has no arterial supply
Q4. Which carpal bone is most commonly dislocated?
- Pisiform
- Lunate
- Scaphoid
- Trapezoid
Q5. A volarly displaced lunate can compress which nerve within the carpal tunnel?
- Median nerve
- Musculocutaneous nerve
- Ulnar nerve
- Radial nerve
Q6. In a perilunate dislocation, which carpal bone typically remains aligned with the distal radius while the remainder of the carpus displaces?
- Lunate
- Trapezium
- Capitate
- Hamate
Q7. Injury to the scapholunate ligament primarily disrupts the relationship between which two carpal bones?
- Capitate and hamate
- Lunate and triquetrum
- Scaphoid and lunate
- Trapezium and trapezoid
Q8. A fracture of the hook of hamate can endanger which nerve because of its close relationship on the ulnar side of the wrist?
- Musculocutaneous nerve
- Ulnar nerve
- Median nerve
- Axillary nerve
Q9. Which four carpal landmarks define the major bony attachment points of the flexor retinaculum?
- Scaphoid tubercle, trapezium tubercle, pisiform, and hook of hamate
- Scaphoid, lunate, capitate, and hamate heads
- Radial styloid, ulnar styloid, pisiform, and capitate
- Lunate, triquetrum, capitate, and trapezoid
Q10. Which description best summarizes the functional organization of the carpal bones?
- A single row of bones that articulates only with the ulna
- Eight fused bones forming a rigid bridge between the radius and phalanges
- Two interconnected rows that provide wrist mobility, stability, force transmission, and the bony arch of the carpal tunnel
- Eight sesamoid bones contained entirely within flexor tendons